Patents
Patents for H02K 21 - Synchronous motors having permanent magnet; Synchronous generators having permanent magnet (17,141)
10/2005
10/13/2005US20050225186 Spherical bearing, electric motor and circulation pump
10/13/2005US20050223541 Electrical machine and method of manufacturing the same
10/13/2005DE102004014865A1 Elektrischer Nockenwellerversteller mit Scheibenläufermotor Electrical Nockenwellerversteller with disc rotor motor
10/13/2005CA2504132A1 Improved magneto multiple pole charging system
10/12/2005EP1585210A2 Rotor structure
10/12/2005EP1584129A1 Method for controlling electric motor cogging and permanent magnet electric motor
10/12/2005CN2733726Y A connection terminal for intermediate frequency permanent magnet synchronous fly wheel generator stator
10/12/2005CN1682422A An electrical motor/generator having a number of stator pole cores being larger than a number of rotor pole shoes
10/12/2005CN1681188A 转子结构 Rotor structure
10/12/2005CN1681185A Motor rotor
10/12/2005CN1681184A Motor rotor
10/12/2005CN1223070C Hydraulic generator
10/11/2005US6954019 Apparatus and process for generating energy
10/11/2005US6954018 Rotor of line start permanent magnet motor and manufacturing method thereof
10/06/2005US20050223400 Spindle motor
10/06/2005US20050218751 Rotor structure
10/06/2005US20050218748 Stator for a line-start electric motor
10/06/2005US20050218740 Low profile generator configuration
10/06/2005US20050218738 Hybrid-secondary uncluttered permanent magnet machine and method
10/06/2005US20050218255 Spool braking device and dual bearing reel having the same
10/06/2005DE102005009523A1 Elektrische Axialspalt-Rotationsmaschine Electrical axial gap rotary machine
10/05/2005CN1679220A Polyphase claw pole structures for an electrical machine
10/05/2005CN1678838A Hydrodynamic bearing device
10/05/2005CN1677805A Plane-type generating apparatus
10/05/2005CN1677803A External-rotating permanent magnet motor
10/05/2005CN1222097C Electric machine
10/05/2005CN1222095C Spindle motor rotor, address varying signal output device and correspondent flexible disk driver
10/05/2005CN1221428C Generator
10/04/2005US6952064 Motor
09/2005
09/29/2005WO2005091475A1 Single field rotor motor
09/29/2005WO2005091467A1 Brushless motor
09/29/2005WO2005091464A1 Rotating machine
09/29/2005WO2005089327A2 Commercial low cost, high efficiency motor-generator
09/29/2005WO2005047175A3 Electromechanical assemblies using molecular-scale electrically conductive and mechanically flexible beams and methods for application of the same
09/29/2005US20050214144 Centrifugal Fan
09/29/2005US20050213857 Hydrodynamic bearing system for the rotary bearing of a spindle motor
09/29/2005US20050212374 Electrical machine
09/29/2005US20050212367 Brushless D.C. motor
09/29/2005DE19935554B4 Vorrichtung zum Erzeugen eines variabel einstellbaren Magnetfeldes für Fahrradzubehörteile Apparatus for generating a variably adjustable magnetic field for bicycle accessories
09/29/2005DE102005010535A1 Vorrichtung und Verfahren zum Erzeugen elektrischer Energie in einem Bohrloch Apparatus and method for generating electric energy in a borehole
09/29/2005DE102004056618A1 Manufacturing method of stator for brushless direct current electric motor, involves forming back yoke by helically stacking band-shaped silicon steel plate sheet and coupling magnetic poles formed by magnetic iron powder with back yoke
09/29/2005DE102004011748B3 Stator für einen Line-Start-Elektromotor Stator for a line-start electric motor
09/28/2005EP1580870A2 BLDC motor
09/28/2005EP1579553A1 Rotor for an electric motor
09/28/2005EP1579552A1 A motor
09/28/2005EP1579549A1 Rotor for an electric motor
09/28/2005CN2728900Y Electric bicycle having rim generator
09/28/2005CN1675817A Rotating electric machine and motor-driven vehicle
09/28/2005CN1675816A Four-pole synchronous motor
09/28/2005CN1675813A Magnet of dynamo-electric machine
09/28/2005CN1675812A Rotator of permanent magnet rotating electric machine
09/28/2005CN1675703A Fluid dynamic bearing secondary capillary seal reservoir
09/28/2005CN1221068C Synchronous motor rotor
09/28/2005CN1221066C Motor
09/27/2005US6951025 Gas dynamic pressure bearing, spindle motor comprising a gas dynamic pressure bearing, and recording disk drive device and polygon scanner comprising a spindle motor
09/27/2005US6950276 Disk drive motor and disk drive storage device incorporating same
09/27/2005US6949864 Rotary electric motor having concentric annular members
09/27/2005US6949856 Permanent magnet rotating electric machine and electrically driven vehicle employing same
09/27/2005US6949855 Transverse flux electrical machine with toothed rotor
09/22/2005WO2005088827A1 Motor and drive control system thereof
09/22/2005WO2005088812A1 Motor using rectangualar waveform conductor
09/22/2005WO2005088806A1 Permanent magnet electric motor, driving method and producing method of the motor, refrigerant compressor, and blower
09/22/2005WO2005088805A1 An electric machine and magnetic field modifying assembly therefor
09/22/2005US20050210490 Disk Drive Motor and Disk Drive Device Having the Same
09/22/2005US20050206266 Stator for an electric motor
09/22/2005US20050206265 Motor, stator for the same, and manufacturing method thereof
09/22/2005US20050206262 Permanent magnet array and magnet holder for flywheel motor/generator
09/22/2005US20050206261 Electromagnetic motor employing multiple rotors
09/22/2005US20050206255 Spindle motor
09/22/2005DE19781789B4 Selbststartender bürstenloser Elektromotor Self-Launching brushless electric motor
09/22/2005DE102005008283A1 Magnetischer Trägheitskraftgenerator Magnetic inertial force generator
09/22/2005DE102004009047A1 Läufermotor Rotor motor
09/22/2005DE102004008158A1 Sphärisches Lager, Elektromotor und Umwälzpumpe Spherical bearings, electric motor and circulation pump
09/21/2005EP1578000A2 Stator for an electric motor
09/21/2005CN2728091Y Flat type permanent magnetic synchronous starting generator
09/21/2005CN1672208A Low friction, wear resistant coatings for high speed spindle motors in disc drive/storage applications
09/21/2005CN1672207A Rotor limiter for fluid dynamic bearing motor
09/21/2005CN1671028A Disk drive motor and disk drive device having the same
09/21/2005CN1671024A Motor, stator for the same, and manufacturing method thereof
09/21/2005CN1220319C Permanent magnetic rotary motor and its compressor with the motor
09/21/2005CN1220318C Single phase directly start permanent magnetic synchronous motor
09/20/2005US6946771 Polyphase claw pole structures for an electrical machine
09/20/2005US6946767 Alternating current generator
09/20/2005US6946766 Permanent magnet machine
09/20/2005US6946765 Rotor unit for an electromotor and an internal rotor electromotor
09/20/2005US6946760 Brushless permanent magnet motor with high power density, low cogging and low vibration
09/20/2005CA2459126C Rotary electric motor having axially aligned stator poles and/or rotor poles
09/15/2005WO2005086320A1 Disc drive
09/15/2005US20050200232 Electric motor
09/15/2005US20050200226 Method for manufacturing stator of brushless direct current electric motor, and stator of brushless direct current electric motor manufactured by the method
09/15/2005US20050200223 Permanent magnet rotating electric machine and electric car using the same
09/15/2005US20050200222 Synchronous electric machine
09/15/2005US20050200221 Method and apparatus for converting human power to electrical power
09/15/2005US20050200220 Electromagnetic motor employing multiple rotors
09/15/2005US20050200213 Motor and drive control system thereof
09/15/2005US20050200210 Apparatus and method for generating electrical power in a borehole
09/15/2005DE10245016B4 Elektromotor mit sphärisch gelagertem Läufer Electric motor with spherical rotor stored
09/15/2005DE102004007426A1 Elektrisches Antriebssystem Electric propulsion system
09/15/2005DE102004007422A1 Synchronmaschine mit Statorspulen in Dreieckschaltung Synchronous machine with stator coils in delta
09/15/2005DE102004006890B3 Rotary or linear electrical machine with permanent magnets for variety of power applications uses transverse magnetic flux and has divided windings fed with three-phase AC